Carb Settings and Notes for '68-'74 Honda CB450 CL450 Twins

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Keihin Type First Gen CV Metal Slide
Carb ID 14H
Main Jet - 130
Idle Jet - 38
Fuel Passage Plug - Yes
Jet Needle - 053000
Needle Jet -
Float Height - 20mm
Air Screw - 1.5 Turn +- 3/8 Turn

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Keihin Type First Gen CV Metal Slide
Carb ID 723A
Main Jet - 145
Idle Jet - 38
Fuel Passage Plug - Yes
Jet Needle - 052301
Needle Jet -
Float Height - 20mm
Air Screw - 1.5 Turn +- 3/8 Turn

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Keihin Type First Gen CV Metal Slide
Carb ID 723B
Main Jet - 150
Idle Jet - 38
Fuel Passage Plug - Yes
Jet Needle - 052301
Needle Jet -
Float Height - 20mm
Air Screw - 1 Turn +- 3/8 Turn